The author wrote on their twitter that volume 3 is delayed because they're drawing an extra chapter/pages, I'm not sure which, hopefully we get those translated too, when the volume is out.
Yeah, this is the first part, the second part is a prequel about the power struggle between Shoichi and Toakes group that happened before this story. The third part as far as I can understand off of a short synopsis on Amazon is about a female detective that gets some info about something while...
@ghostkun
Yep, there is. That one is done with CGI. At first I thought it was by the Gantz author, but it isn't. Can't remember the name.
Edit:
Found it. Here
@BalrogDeMorgoth Both of those series have been completely translated. Dokgo 2 was done after Zero Scans dropped it and then one guy did the rest of the chapters in one 30 chapter batch and posted it on his own site, you can probably find it on other aggregator sites. Blood Rain 1 has been done...